These enamels are based on the VR System and have been specially color matched and approved by the large international soft drink brands - Coca-Cola, Pepsi-Cola, Cadbury-Schweppes.
- chemical composition: lead and cadmium
- expansion coefficient (C.o.E.): Average C.o.E. measured on the basic frit System is 80 (± 4).10-7K-1.
- recommended firing conditions: 580oC to 630oC (1075-1165oF) in a cycle of 1hr-1.5hrs or more, with a soaking period of c.10 minutes. The fire cycle is dependant on the set temperature and the glass bottle thickness.
- chemical resistance: as specified for the VR System
- these colors are also controlled to the following tests: sulfide resistance (ASTM C777-84): no loss of gloss but a very light haze, disappearing when wiped with a cloth |
